000 00237nam a2200097Ia 4500
100 _aGARG, SANTOSH KUMAR
245 _aSEWAGE WASTE DISPOSAL AND AIR POLLUTION ENGINEERING
260 _bKHANNA PUB.
_c1992
300 _a696
942 _2ddc
_cBB
999 _c73553
_d73553